试析贵州省铜元素地球化学图所透露的地质信息

Primary Analysis on the Geological Information from the Geochemical Map of Copper Element in Guizhou Province

根据贵州省铜元素地球化学图透露的地质信息,结合相关资料对比分析,本文认为:(1)黔西北峨眉山玄武岩覆盖区具有较好的找矿前景;(2)下三叠统曾超覆于黔东南地区的上元古宇、石炭系和二叠系等地层之上,该地区在晚二叠世应存在一片古陆;(3)峨眉地裂运动在石炭纪就开始影响贵州;(4)燕山期构造运动对贵州铜元素的再分配有明显影响(5)从江县南部摩天岭花岗岩体北缘接触带很值得进行深入研究。

By the geological information illustrated from the geochemical map of copper element in Guizhou Province, a comparative analysis is made by integrating the relative data. In the opinion of writer, the distributive province of Emeishan basalt in northwestern Guizhou is of fairly prospective; lower Triassic once overlapped the layers of upper Proterozoic, Carboniferous and Permian in Southeastern Guizhou, in which an ancient land of late Permian may come into being; Emeishan fracture movement in impacting on Guizhou originated from Carboniferous; Yanshannian structure movement affects apparently the re-location of copper element; Contact zone at north wing of Motianlin basaltic body in the south of Congjiang is fairly valuable to carry on further research.